(electronics) Initialism of time counter. / (electronics) Initialism of thermocouple. / Initialism of traffic collision. / Initialism of textile color. / Initialism of total compensation.

Initialism of take care.

(advertising) Initialism of till cancelled/countermanded. / (Internet) Initialism of topic closed: indicating that no further replies are allowed in a discussion thread.

(automotive) Initialism of traction control system: an electronic control system that prevents wheelspin to improve traction.

plural of TC

(US, military, mnemonic) Initialism of mission, enemy, terrain, troops available, time, and civilian considerations. Used by the United States military to help commanders remember the considerations in the planning of any operation.

(aviation) Initialism of traffic (alert and) collision avoidance system, a system for warning pilots of impending mid-air collisions and telling them what (if any) evasive action to take.

(Canada, US) A trinket. / (Canada, US, dated) An attractive woman or girl.

(uncountable, organic chemistry) Abbreviation of tricyclic acetone peroxide. / (telephony) Transaction Capabilities Application Part (SS7)

(medicine) Initialism of tricyclic antidepressant. / (aviation) Initialism of terminal control area. / (aviation, travel) Initialism of traffic conference area.